Intermap ORI product is a raster imagery product with terrain information captured at a 0.625-meter resolution. It is generated using Intermap's STAR technology (Interferometric Synthetic Aperture Radar), which is mounted to an aircraft. The ORI data files are digital representations of the radar response signal and is spatially coincident with the DSM and DTM data. These ORI products represent the first reflective surface as illuminated by the radar. Accuracy statements are based on areas of moderate terrain. Diminished accuracies are to be expected in areas of extreme terrain and dense vegetation. The ORI is stored as a contiguous dataset spanning continental land masses where we have captured data. It is available in specific areas of interest or in 15-minute by 15-minute tile areas. For more detailed information, refer to Intermap's Product Handbook at <http://www.intermap.com/Portals/0/doc/Brochures/INTERMAP_Product_Handbook.pdf>.

Purpose:

The ORI imagery is used for visual representation and for applications such as feature classification and spatially referencing aerial and satellite imagery.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20120706

Ending_Date: 20120712

Currentness_Reference:

The above dates refer to the time of field data acquisition and therefore reflect ground conditions at that time.

Status:

Progress: Complete

Maintenance_and_Update_Frequency: Ongoing

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -165.609896

East_Bounding_Coordinate: -165.143200

North_Bounding_Coordinate: 65.271293

South_Bounding_Coordinate: 64.978562

Keywords:

Theme:

Theme_Keyword_Thesaurus: MEL_Scientific-Engineering_Field_Thesaurus

Theme_Keyword: Elevation

Theme_Keyword: Cartography

Theme_Keyword: Geodesy

Theme_Keyword: Geography

Theme_Keyword: Hypsography

Theme_Keyword: Mapping

Theme_Keyword: Photogrammetry

Theme_Keyword: Stereophotogrammetry

Theme_Keyword: Topography

Theme_Keyword: Radar

Theme_Keyword: Interferometric

Theme_Keyword: Remote

Theme_Keyword: Sensing

Theme_Keyword: SAR

Theme_Keyword: DEM

Theme_Keyword: DTM

Theme_Keyword: DSM

Theme_Keyword: ORI

Theme_Keyword: INSAR

Theme_Keyword: IFSAR

Theme_Keyword: IFSARE

Theme_Keyword: GEOSAR

Theme_Keyword: height

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: Alaska

Place_Keyword: USA

Stratum:

Stratum_Keyword_Thesaurus: MEL_Environmental_Domain_Thesaurus

Stratum_Keyword: Terrain

Stratum_Keyword: Earth

Stratum_Keyword: Surface

Stratum_Keyword: Ground

Stratum_Keyword: First

Temporal:

Temporal_Keyword_Thesaurus: 2012

Temporal_Keyword: July

Access_Constraints: Purchase

Use_Constraints: End User License Agreement

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Intermap Technologies Inc.

Contact_Position: Data Archive Manager

Contact_Address:

Address_Type: mailing address

Address: 8310 South Valley Highway, Suite 400

City: Englewood

State_or_Province: CO

Postal_Code: 80112-5847

Country: USA

Contact_Voice_Telephone: (303) 708-0955

Contact_Facsimile_Telephone: (303) 708-0952

Contact_Electronic_Mail_Address: service@intermap.com

Data_Set_Credit: This data was produced by Intermap Technologies Inc.

Native_Data_Set_Environment:

This data is delivered on interoperable media with metadata. The data set was developed on a Microsoft Windows system using Intermap's propriatory Interferometric Editing System (IES).

All data products are 2 meters RMSE or better in areas of unobstructed flat ground.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report: None

Lineage:

Process_Step:

Process_Description:

The NEXTMap ORI products are derived using Intermap Technologies' STAR-3 airborne Interferometric SAR data acquisition system. The data for this tile was captured at 25200 feet above mean sea level with a primary look direction of West and the swaths with IDs 16, 27, 30, 67, 72, 85 and 87. ORI products represent what is captured by the radar. Most incidents of missing data are due to radar shadow and layover in high-relief areas such as mountainous regions and highly developed urban areas and correspond to the look direction of the radar. Areas where null data occurs within an image, such as shadows, are assigned the value 0. Areas where the sensor could not resolve the return signal are assigned the value 1.

Process_Date: 20121101

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster

Raster_Object_Information:

Raster_Object_Type: Pixel

Row_Count: 48272

Column_Count: 27240

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: Albers Conical Equal Area

Albers_Conical_Equal_Area:

Standard_Parallel: 55.0

Standard_Parallel: 65.0

Longitude_of_Central_Meridian: -154.0

Latitude_of_Projection_Origin: 50.0

False_Easting: 0.0

False_Northing: 0.0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.625

Ordinate_Resolution: 0.625

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: NAD83 CORS96 EPOCH 2003.00

Ellipsoid_Name: GRS80

Semi-major_Axis: 6378137.0

Denominator_of_Flattening_Ratio: 298.257222101

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: 8 bit GeoTIFF

Entity_Type_Definition:

The ORI is an 8 bit georeferenced TIFF image on a 15-minute by 15-minute (lat/long) grid. The origin of the pixel is edge edge.